I got the M7 on release day and love it. Zero problems, but as with anything that gets older, things begin to break down. Looking at the M9, is it more of the same as in just some better specs or (aside from the camera) will it be like having a different phone altogether? To me it looks like not much has changed. I don't want to shell out a lot of money for a newer version of what I have now like all the Apple faithful do every time a variant of the iPhone comes out. If it's worth it then I'll do it, but if it's just lipstick on a pig, then no thanks. Any insight is greatly appreciated.